<template>
  <div>
    <h2 v-if="firstView">请输入关键字进行搜索</h2>
    <h2 v-else-if="loading">正在请求中......</h2>
    <h2 v-else-if="errorMsg">{{errorMsg}}</h2>
    <div class="row" v-else>
      <div class="card" v-for="(user, index) in users" :key="user.username">
        <a :href="user.url" target="_blank">
          <img :src="user.avatar_url" style='width: 100px'/>
        </a>
        <p class="card-text">{{user.username}}</p>
      </div>
    </div>

  </div>
</template>

<script type="text/ecmascript-6">
  import {mapState} from 'vuex'
  export default {
    name: 'Main', // 组件的标识名称 
    computed: {
      ...mapState(['firstView', 'loading', 'errorMsg', 'users'])
    }
  }
</script>

<style scoped>
  .card {
    float: left;
    width: 33.333%;
    padding: .75rem;
    margin-bottom: 2rem;
    border: 1px solid #efefef;
    text-align: center;
  }

  .card > img {
    margin-bottom: .75rem;
    border-radius: 100px;
  }

  .card-text {
    font-size: 85%;
  }

</style>
